require('dotenv').config();
const { Client, GatewayIntentBits, PermissionsBitField } = require('discord.js');

async function generateInvite() {
    const client = new Client({
        intents: [
            GatewayIntentBits.Guilds,
            GatewayIntentBits.GuildMessages,
            GatewayIntentBits.MessageContent,
        ],
    });

    try {
        await client.login(process.env.BOT_TOKEN);
        
        const invite = client.generateInvite({
            scopes: ['bot', 'applications.commands'],
            permissions: [
                // Basic Discord permissions
                PermissionsBitField.Flags.ViewChannel,
                PermissionsBitField.Flags.SendMessages,
                PermissionsBitField.Flags.SendMessagesInThreads,
                PermissionsBitField.Flags.EmbedLinks,
                PermissionsBitField.Flags.AttachFiles,
                PermissionsBitField.Flags.ReadMessageHistory,
                PermissionsBitField.Flags.UseExternalEmojis,
                PermissionsBitField.Flags.AddReactions,
                
                // Application commands (slash commands)
                PermissionsBitField.Flags.UseApplicationCommands,
                
                // Message management for bot maintenance
                PermissionsBitField.Flags.ManageMessages,
                
                // Channel management for notifications setup
                PermissionsBitField.Flags.ViewChannel,
                PermissionsBitField.Flags.ManageChannels,
                
                // Advanced features
                PermissionsBitField.Flags.CreatePublicThreads,
                PermissionsBitField.Flags.CreatePrivateThreads,
                PermissionsBitField.Flags.UseExternalStickers,
                
                // Voice permissions (if needed for future features)
                PermissionsBitField.Flags.Connect,
                PermissionsBitField.Flags.Speak,
            ]
        });

        console.log('\n🤖 ===== VRBattles Discord Bot Invite Generator ===== 🤖');
        console.log('\n📊 Current Bot Status:');
        console.log(`Name: ${client.user.tag}`);
        console.log(`ID: ${client.user.id}`);
        console.log(`Created: ${client.user.createdAt.toDateString()}`);
        
        console.log('\n🏠 Current Servers:');
        if (client.guilds.cache.size === 0) {
            console.log('❌ Bot is not in any servers yet');
        } else {
            console.log(`✅ Bot is active in ${client.guilds.cache.size} server(s):`);
            client.guilds.cache.forEach(guild => {
                console.log(`   🎮 ${guild.name} (${guild.memberCount} members) - ID: ${guild.id}`);
            });
        }

        console.log('\n🔗 ===== Bot Invite Link ===== 🔗');
        console.log('Copy and share this link to invite VRBattles Bot to any Discord server:');
        console.log('\n' + invite + '\n');
        
        console.log('🎯 ===== Bot Features ===== 🎯');
        console.log('✅ Interactive Help System (/help)');
        console.log('✅ Player Search (/finduser)');
        console.log('✅ Team Search (/findteam) with pagination');
        console.log('✅ Match History (/matchhistory)');
        console.log('✅ Game Subscriptions (/subscribe, /unsubscribe)');
        console.log('✅ Server Registration (/register_server)');
        console.log('✅ Real-time Match Notifications');
        console.log('✅ Dynamic Autocomplete');
        
        console.log('\n⚙️ ===== Permissions Included ===== ⚙️');
        console.log('✅ View Channels & Send Messages');
        console.log('✅ Slash Commands Support');
        console.log('✅ Embed Links & File Attachments');
        console.log('✅ Message & Channel Management');
        console.log('✅ Emoji & Reaction Support');
        console.log('✅ Thread Management');
        console.log('✅ Voice Channel Access (future features)');
        
        console.log('\n🚀 ===== Setup Instructions ===== 🚀');
        console.log('1. 🔗 Click the invite link above');
        console.log('2. 🏠 Select your Discord server from the dropdown');
        console.log('3. ✅ Keep ALL permissions checked (required for full functionality)');
        console.log('4. 🎉 Click "Authorize" to add the bot');
        
        console.log('\n📝 ===== After Adding the Bot ===== 📝');
        console.log('1. 💬 Run /help to see all available commands');
        console.log('2. 🔧 Run /register_server to connect your server');
        console.log('3. 🎮 Run /subscribe to set up game notifications');
        console.log('4. 🔍 Try /finduser to search for players!');
        
        console.log('\n🔧 ===== Admin Setup (Channel IDs) ===== 🔧');
        console.log('To get Discord Channel IDs for notifications:');
        console.log('1. Enable Developer Mode: User Settings > App Settings > Advanced > Developer Mode');
        console.log('2. Right-click any text channel > Copy ID');
        console.log('3. Use the ID in /subscribe command');
        
        console.log('\n📚 ===== Documentation ===== 📚');
        console.log('Full documentation: https://help.vrbattles.gg');
        console.log('VRBattles website: https://www.vrbattles.gg');
        
        console.log('\n✨ VRBattles Discord Bot is ready to enhance your VR gaming community! ✨\n');

    } catch (error) {
        console.error('❌ Error generating invite:', error);
        if (error.code === 'TOKEN_INVALID') {
            console.error('\n🔑 Invalid bot token. Please check your .env file and ensure BOT_TOKEN is set correctly.');
        }
    } finally {
        client.destroy();
    }
}

generateInvite().catch(console.error);